Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121094
Title: ATOMIC LAYER DEPOSITION FOR 1D TIO2 NANOTUBES AND 2D MOS2 NANOFILMS
Authors: TAN LEE KHENG
Keywords: ALD, TiO2, MoS2, nanotubes, nanofilms, porous anodic alumina template
Issue Date: 9-Jan-2015
Citation: TAN LEE KHENG (2015-01-09). ATOMIC LAYER DEPOSITION FOR 1D TIO2 NANOTUBES AND 2D MOS2 NANOFILMS. ScholarBank@NUS Repository.
Abstract: Atomic layer deposition (ALD) self-limiting growth mechanism enables the growth of ultrathin and conformal films in nanoscale structures. An approach termed ?template-assisted ALD? which consists of both porous anodic alumina (PAA) template and ALD technique, results the growth of 1D TiO2 nanotube arrays (NTAs) on substrates. The nanotube wall-thickness is controlled by the number of deposition cycles. Pd nanoparticles functionalized TiO2 NTAs act as UV light-activated photocatalyst while upconversion nanoparticles (UCNPs) functionalized TiO2 NTAs act as NIR light-activated photocatalyst. The photodegradation efficiency depends on the nanotube?s wall-thickness and high surface area. ALD process deposit TiO2 films conformally onto PAA templates which have different dimensions and morphologies. Vertically standing TiO2 NTAs are ideal photoanodes for dye-sensitized solar cells. A novel ALD process prepares 2D MoS2 mono- and multilayers films on sapphire substrates. The monolayer MoS2 film having a triangular crystals structure after annealing process, exhibited high photoluminescence emission in visible range.
URI: http://scholarbank.nus.edu.sg/handle/10635/121094
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
01TITLE AND COVER PAGE.pdf7.5 kBAdobe PDF

OPEN

NoneView/Download
02DECLARATION.pdf205.4 kBAdobe PDF

OPEN

NoneView/Download
03ACKNOWLEDGEMENTS.pdf81.95 kBAdobe PDF

OPEN

NoneView/Download
05TABLE OF CONTENT.pdf159.56 kBAdobe PDF

OPEN

NoneView/Download
06SUMMARY.pdf175.41 kBAdobe PDF

OPEN

NoneView/Download
07LIST OF TABLES.pdf131.46 kBAdobe PDF

OPEN

NoneView/Download
08LIST OF FIGURES.pdf233.09 kBAdobe PDF

OPEN

NoneView/Download
09LIST OF ABBREVIATIONS AND SYMBOLS.pdf138.59 kBAdobe PDF

OPEN

NoneView/Download
10CHAPTER 1.pdf555.53 kBAdobe PDF

OPEN

NoneView/Download
11CHAPTER 2.pdf701.53 kBAdobe PDF

OPEN

NoneView/Download
12CHAPTER 3.pdf844.27 kBAdobe PDF

OPEN

NoneView/Download
13CHAPTER 4.pdf812.9 kBAdobe PDF

OPEN

NoneView/Download
14CHAPTER 5.pdf851.41 kBAdobe PDF

OPEN

NoneView/Download
15CHAPTER 6.pdf1.49 MBAdobe PDF

OPEN

NoneView/Download
16CHAPTER 7.pdf181.44 kBAdobe PDF

OPEN

NoneView/Download

Page view(s)

130
checked on Oct 19, 2018

Download(s)

534
checked on Oct 19, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.